JPH09317041A - Member clearance seal member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal member excellent in a weather proof property and a pollution resistance property with a good water tightness and air tightness and a simple assembly process and hard to drop from the clearance of a wall member even after a long year usage. SOLUTION: This member clearance seal member is provided with a seal member main body 32 inserted in the clearance inside between wall members 20, 20 and also formed by an elastic raw material having a notch part 32a on the back surface part, a covered part 31a with a shape for covering the clearance between the wall members 20, 20, a leg part 31b erected from the body surface of the covered part 31a and a covered member 31 formed by using a hard raw material and inserted the leg part 31b in the notch part 32a of the seal member main body 32 and integrated with the seal member main body 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal member for sealing a gap (a joint portion or the like) between various members such as wall members for interiors and exteriors of buildings and the like.

[0002]

2. Description of the Related Art A wall panel 1 as shown in FIG. 2 (a) is attached to a wall surface of a building to improve its appearance and weather resistance. In the wall panel 1 of FIG. 2A, a plurality of wall members 20, 20, are attached to the panel frame 10, and the gaps between the wall members 20, 20, are filled with sealing members 300, 300, respectively. Alternatively, the seal members 300 ', 300', are fitted to each other, whereby the watertightness and airtightness are secured. These sealing members 300, 300, (or 300 ′, 300 ′,) are generally called gaskets. As a gasket 300 to be filled in the gap between the wall members 20, 20, there is known one in which caulking (sealant) is filled in the gap as shown in FIG. 2 (b). It has excellent watertightness and has good characteristics that cracks due to aging do not easily occur because it can follow the displacement such as expansion and contraction of the wall member, but the weather resistance of the part exposed to air is poor. Therefore, there is a problem that it is easily soiled by long-term use. Also,
Since the gap is filled in between the wall members 20, 20, there is also a problem that the process is complicated and the working time is long. Wall member
As the gasket 300 'fitted in the gap of 20,20, a soft vinyl chloride resin is formed into a cross-sectional shape as shown in FIG. 2 (c) and fitted so as to span the gap. It has been known. However, with this method, the sealing properties such as watertightness and airtightness are not sufficient, and since it is fitted so as to span the above-mentioned gap, it is likely to fall out of the gap after many years of use. There is a defect.

[0003]

DISCLOSURE OF THE INVENTION The present invention has good watertightness and airtightness, does not fall out of the gap due to long-term use, and has a simple process of providing a seal member in the gap of each wall member, thus reducing the working time. The purpose is to provide a seal member having a short length.
Another object of the present invention is to provide a seal member that does not easily fall out of the gap between the wall members even after many years of use. Further, another object of the present invention is to provide a seal member which has good weather resistance and is hard to get dirty even after many years of use.

[0004]

SUMMARY OF THE INVENTION The present invention covers a seal member main body formed of a material having elasticity so that the seal member main body can be fitted into a gap between adjacent members and a gap between the adjacent members. A member gap seal member, comprising: a cover member having a shape to be obtained; and a cover member having at least a rear surface side portion of the cover member formed to be hard, and an abdominal surface of the cover member being in close contact with a back surface of the seal member main body. Further, the present invention is a seal formed by using a material having elasticity so that it can be fitted into a gap between adjacent members, and a notch formed along the direction of the gap on the back surface side. A member main body, a covering portion having a shape capable of covering a gap between adjacent members, and a leg portion standing upright from an abdominal surface of the covering portion. The leg portion and at least the rear surface side portion of the covering portion are formed to be rigid. And a cover member in which the leg portion is fitted into the cutout portion of the seal member body and the abdominal surface of the cover portion is brought into close contact with the back surface of the seal member body. The seal member configured as described above has good watertightness and airtightness, the step of providing the seal member in the gap between the wall members and the like is simple, and the working time is short. Further, since the seal member main body is fitted inside the gap between the adjacent wall members and the seal member main body is covered with the covering member, the seal member may fall out of the gap even after many years of use. It is sufficiently reduced. Examples of the elastic material that is the material for forming the seal member body include natural rubber, styrene-butadiene rubber, silicone rubber, nitrile rubber, acrylic rubber, ethylene-propylene rubber, butyl rubber, isoprene rubber, and fluororubber. Rubber-like polymer or vulcanized product (crosslinked product) thereof; thermoplastic elastomer such as polystyrene-based thermoplastic elastomer, polyolefin-based thermoplastic elastomer, polyurethane-based thermoplastic elastomer, polyester-based thermoplastic elastomer and polyamide-based thermoplastic elastomer A soft halogen-based resin such as a soft vinyl chloride-based resin; an olefin polymer such as polypropylene, polyethylene, an ethylene-vinyl acetate-based resin; a water-absorbing elastomer, a water-absorbing polymer, or the above-mentioned polymer containing a water-absorbing compound Polymers having water-absorbing and the like. The elongation of the elastic material of the present invention is preferably 130% or more, more preferably 150 to 800%, and particularly preferably 150 to 700%. When the elongation is within the above range, the sealing property and the construction workability are excellent. Examples of the hard material that is a material for forming the covering member include acrylonitrile-styrene resin (ABS resin) reinforced with butadiene rubber, acrylonitrile-styrene resin reinforced with ethylene-propylene rubber, and diene hydrogenated rubber. Rubber-reinforced graft copolymers such as acrylonitrile-styrene resin reinforced with acrylonitrile-styrene copolymer, polymethylmethacrylate (PMMA), rigid polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), ethylene-vinyl acetate resin (EVA resin), polytetrafluoroethylene (PTFE), cellulose acetate (CA), cellulose acetate butyrate (CAB), nylon (PA), polyacetal (POM), polycarbonate (PC), polyethylene terephthalate (PETP), polybutylene terephthalate (PBTP), polyphenylene oxide (PP
O), polyphenylene sulfide (PPS), phenol resin, urea resin, melamine resin, unsaturated polyester resin, epoxy resin, silicon resin, polyurethane and the like. Furthermore, aluminum, stainless steel, etc. are also mentioned. The elongation of the hard material of the present invention is preferably 130
%, More preferably 0.1 to 130%, particularly preferably 0.1 to 110%. When the elongation is within the above range, the workability and the adhesiveness are excellent, and the adhesiveness is maintained even after many years of use without dropping off.
The cut portion of the seal member main body and the leg portion of the covering member are formed at mutually corresponding portions.
Further, the tip of the leg portion of the covering member may be provided with a reverse portion for locking for preventing the leg member from coming off after being fitted. Further, in order to improve the adhesion between the back surface of the seal member body and the abdominal surface of the covering member, a known adhesive may be interposed between the two.

In the seal member of the present invention, a weather resistant coating material can be applied on the back surface of the covering portion of the covering member. As the coating material, a coating material containing a hydrolyzate of a silane compound represented by the following chemical formula [Chemical formula 1] as a main component can be preferably used. The invention of claim 3 is a sealing member coated with a silane-based coating material represented by the following chemical formula [Chemical formula 1].

Embedded image R ¹ _n Si (OR ² ) _4-n where R ¹ represents an organic group having 1 to 8 carbon atoms, R ² represents an alkyl group having 1 to 5 carbon atoms or an acyl group having 1 to 4 carbon atoms. Represents a group, and n is an integer of 0 to 2. The seal member configured as described above has, in addition to the action and effect of the seal member according to the first and second aspects, a characteristic that the seal member has good weather resistance and is not easily soiled even after long-term use. In addition, in the above, "mainly containing a hydrolyzate" means that the hydrolyzate is 15% by weight or more, preferably 30% by weight or more of the total solid content of the silane-based coating material. To do.

Examples of the organic group having 1 to 8 carbon atoms of R ¹ of the silane compound represented by the chemical formula [Formula 1] include, for example, methyl group, ethyl group, n-propyl group, i-propyl group,
n-butyl group, i-butyl group, sec-butyl group, t-
Alkyl groups such as butyl group, n-pentyl group, n-hexyl group, n-heptyl group, n-octyl group; 3-fluoropropyl group, 3-chloropropyl group, 3,3,3-trifluoropropyl group, etc. Halogenated alkyl group; mercapto group-containing alkyl group such as 2-mercaptoethyl group, 3-mercaptopropyl group; 2-aminoethyl group, 2-dimethylaminoethyl group, 3-aminopropyl group, 3-dimethylaminopropyl group Aryl group such as phenyl group, methylphenyl group, ethylphenyl group, methoxyphenyl group, ethoxyphenyl group, fluorophenyl group, chlorophenyl group and the like; aralkyl group such as benzyl group; 2-glycidoxy Ethyl group, 3-glycidoxypropyl group, 2- (3,4-epoxycyclohexyl) ethyl group A vinyl group, 3- (meth) unsaturated group-containing organic groups such as acryloxy propyl; epoxy group-containing organic group. Examples of the alkyl group having 1 to 5 carbon atoms of R ^{2 in} the chemical formula [Formula 1] include, for example, methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i- Butyl group, s
An ec-butyl group, a t-butyl group, an n-pentyl group and the like can be mentioned, and examples of the acyl group having 1 to 4 carbon atoms of R ² include an acetyl group, a propionyl group and a butyryl group. it can. In the above chemical formula [Chemical Formula 1], two R ¹ and two or more R ² may be the same or different.

Specific examples of the silane compound include tetramethoxysilane, tetraethoxysilane, and tetra-n.
-Propoxysilane, tetra-i-propoxysilane,
Tetra-n-butoxysilane, tetra-i-butoxysilane, tetra-sec-butoxysilane, tetra-t-
Tetraalkoxysilanes such as butoxysilane; methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, n
-Propyltrimethoxysilane, n-propyltriethoxysilane, i-propyltrimethoxysilane, i-propyltriethoxysilane, 3-chloropropyltrimethoxysilane, 3-chloropropyltriethoxysilane, 3,3,3-tri Fluoropropyltrimethoxysilane, 3,3,3-trifluoropropyltriethoxysilane, 3-mercaptopropyltrimethoxysilane, 3-
Mercaptopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, benzyltrimethoxysilane, benzyltriethoxysilane, 3-glycidoxypropyltrimethoxy Silane, 3-glycidoxypropyltriethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltriethoxysilane, vinyltrimethoxysilane, vinyltriethoxy Silane, 3-
(Meth) acryloxypropyltrimethoxysilane,
Trialkoxysilanes such as 3- (meth) acryloxypropyltriethoxysilane; dimethyldimethoxysilane, dimethyldiethoxysilane, diethyldimethoxysilane, diethyldiethoxysilane, di-n-propyldimethoxysilane, di-n-propyldiene. Ethoxysilane, di-i-propyldimethoxysilane, di-i-propyldiethoxysilane, diphenyldimethoxysilane,
Dialkoxysilanes such as diphenyldiethoxysilane, tetraacyloxysilanes such as tetraacetyloxysilane and tetrapropionyloxysilane; triacyloxysilanes such as methyltriacetyloxysilane and ethyltriacetyloxysilane; dimethyldiacetyloxysilane, Examples thereof include diacyloxysilanes such as diethyldiacetyloxysilane. These compounds can be used alone or in admixture of two or more. One or more alkoxides of other metals (for example, titanium, aluminum, etc.) can be used in combination with the silane compound, and a silane coupling agent can be used in combination, if necessary. The silane compound is one that liberates an alcohol and / or a carboxylic acid to produce a silanol compound by hydrolysis, or the silanol compound is partially condensed to produce a low molecular weight polysiloxane, and The "hydrolyzate of a silane compound" based on the chemical formula [Chemical Formula 1] means one composed of the silanol compound and / or the low molecular weight polysiloxane.

The following metal chelate compounds can be used to accelerate the hydrolysis reaction and / or condensation reaction of the silane compound. The metal chelate compound has the formula: Zr (OR ³ ) _p (R ⁴ COCHCOR ⁵ ).
_4-p , Ti (OR ³ ) _q (R ⁴ COCHCO
R ⁵ ) _4-q or Al (OR ³ ) _r (R ⁴ COHCC
OR ⁵ ) _3-r , or at least one selected from the group of compounds represented by or a partial hydrolyzate thereof. In the above formulas, R ³ and R ⁴ may be the same or different. These represent an organic group having 1 to 6 carbon atoms. R ⁵ represents an organic group having 1 to 6 carbon atoms or an alkoxy group having 1 to 16 carbon atoms. p and q are integers of 0 to 3, r is 0 to
It is an integer of 2. Here, as the organic group of R ^{3 to} R ⁵ having 1 to 6 carbon atoms, for example, methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i-butyl group, sec- Examples thereof include a butyl group, a t-butyl group, an n-pentyl group, an n-hexyl group and a phenyl group. Examples of the alkoxy group having 1 to 16 carbon atoms of R ⁵ include, for example, methoxy group, ethoxy group, n-propoxy group, i-propoxy group, n-butoxy group, i-butoxy group, sec-butoxy group, t. Examples thereof include butoxy group, lauryl group and stearyl group. These R
^When two or more of ³ , R ⁴ and R ⁵ are present, they may be the same or different. Specific examples of the metal chelate compound include, for example, tri-n-butoxy-ethylacetoacetate zirconium, di-n-butoxy.
Zirconium chelate compounds such as bis (ethylacetoacetate) zirconium, n-butoxytris (ethylacetoacetate) zirconium, tetrakis (n-propylacetoacetate) zirconium, tetrakis (acetylacetonato) zirconium, tetrakis (ethylacetoacetate) zirconium Di-i-propoxy bis (ethylacetoacetate) titanium,
Titanium chelate compounds such as di-i-propoxy bis (acetylacetonato) titanium and di-i-propoxy bis (acetylacetonato) titanium; di-i-propoxy ethylacetoacetate aluminum, di-i-propoxy. Acetylacetonate aluminum, i-propoxy bis (ethylacetoacetate) aluminum, i-propoxy bis (acetylacetonate) aluminum, tris (ethylacetoacetate) aluminum, tris (acetylacetonate) aluminum, monoacetylacetonate. Examples thereof include aluminum chelate compounds such as bis (ethylacetoacetate) aluminum. Among these metal chelate compounds, tri-n-butoxy ethyl acetoacetate zirconium, di-i-proxy.
Bis (acetylacetonato) titanium, di-i-propoxy-ethylacetoacetate aluminum, and tris (ethylacetoacetate) aluminum are preferable. These metal chelate compounds may be used alone or in combination with 2
A mixture of more than one species can be used. The amount of the metal chelate compound used is usually 30 parts by weight or less, preferably 20 parts by weight or less, and more preferably 10 parts by weight or less with respect to 100 parts by weight of the silane compound. In this case, if the amount of the metal chelate compound used exceeds 30 parts by weight, cracks may occur in the resulting coating film, which is not preferable. In addition, a curing accelerator may be used in combination to accelerate the curing reaction after applying the coating material based on the chemical formula [Chemical Formula 1], and in that case, curing can be performed at a relatively low temperature. Such a curing accelerator is
For example, those described in JP-A-5-345877 can be mentioned.

The coating material is produced by hydrolyzing the silane compound, optionally in the presence of the metal chelate compound. In this hydrolysis reaction, the silane compound is usually used in an aqueous medium at 30 to 70 ° C., preferably 40 to 60 ° C., usually 2 to 10 hours, preferably 4 to
It is carried out by treating for about 8 hours. When the chelate compound is used, at least one β-diketone and / or β-ketoester represented by the formula R ⁴ COCH ₂ COR ⁵ is used for the purpose of improving the storage stability of the silane coating material. It is preferable to add. here,
R ⁴ and R ⁵ in R ⁴ in the metal chelate compound
And R ⁵ have the same meaning. Specific examples of such β-diketones and β-ketoesters include, for example, acetylacetone, methyl acetoacetate, ethyl acetoacetate, n-propyl acetoacetate, i-propyl acetoacetate, n-butyl acetoacetate, I-Butyl acetoacetate, sec-butyl acetoacetate, t-butyl acetoacetate, 2,
4-hexanedione, 2,4-heptanedione, 3,5
-Heptanedione, 2,4-octanedione, 3,5-
Octanedione, 2,4-nonanedione, 3,5-nonanedione, 5-methyl 2,4-hexanedione and the like can be mentioned. Of these β-diketones and β-ketoesters, acetylacetone and ethyl acetoacetate are particularly preferable. These β-diketones and β-ketoesters can be used alone or in admixture of two or more. The total amount of β-diketones and β-ketoesters used is usually 2 mol or more, preferably 3 to 20 mol, per 1 mol of the metal chelate compound. In this case, if the total amount used is less than 2 mol, the effect of improving storage stability cannot be sufficiently achieved.

At least one kind of colloidal silica and / or colloidal alumina may be added to the coating material for the purpose of increasing the hardness of the coating film obtained,
Further, for the purpose of enhancing the crack resistance of the coating film, at least one silyl group-containing vinyl resin may be blended. The colloidal silica is a dispersion liquid in which high-purity silicic acid anhydride is dispersed in water and / or a hydrophilic organic solvent, and the average particle size thereof is usually 5 to 100 nm, preferably 10
At 50 nm, the solid content concentration is usually 10-40% by weight.
It is a degree. Such colloidal silica is, for example,
Snowtex, Ssopropanol silica sol, Methanol silica sol (above, manufactured by Nissan Chemical Industry Co., Ltd.); Cataloid, Oscar (above, produced by Catalysts & Chemicals Industry Co., Ltd.); L
Udex (manufactured by DuPont, USA); Syton (manufactured by Monsanto, USA); Nalcoag (manufactured by Nalco Chemical, USA) and the like. The colloidal alumina is usually an alumina sol having water as a dispersion medium and a pH in the range of 2 to 6, or an alumina sol having a hydrophilic organic solvent as a dispersion medium, and the average particle diameter thereof is usually 5 to 200.
nm, preferably 10 to 100 nm, the solid content concentration is
Usually, it is about 5 to 30% by weight. As alumina,
For example, synthetic alumina, boehmite, pseudo-boehmite, etc. can be used. Such colloidal alumina includes, for example, alumina sol-100 and alumina sol-2.
00, alumina sol-520 (above, manufactured by Nissan Chemical Industries, Ltd.) and the like. These colloidal silica and colloidal alumina may be used alone or in admixture of two or more. The total content of colloidal silica and colloidal alumina is usually 60 parts by weight or less, preferably 40 parts by weight or less, based on the solid content of 100 parts by weight of the solid content of the hydrolyzate of the silane compound. In this case, the total blended amount is 6
If it exceeds 0 parts by weight, the adhesiveness of the resulting coating film tends to decrease.

The silyl group-containing vinyl resin is
The main chain is composed of a vinyl-based polymer, and a silyl group containing a silicon atom having a hydrolyzable group and / or a hydroxyl group is at least at the end and / or side chain of the main chain on average per polymer molecule. It is a resin having one, preferably two or more. The polystyrene reduced number average molecular weight of the resin is usually 2,000 to 100,000, preferably 4,000.
It is about 0 to 50,000. Such silyl group-containing vinyl resins are commercially available, for example, under the names of Kaneka Zemlac, Kaneka Cyryl (above, manufactured by Kaneka Fuchi Chemical Co., Ltd.); Silicone acrylic varnish (manufactured by Toshiba Silicone Co., Ltd.) and the like. ing. These silyl group-containing vinyl resins can be used alone or in admixture of two or more. The compounding amount of the silyl group-containing vinyl resin is usually 300 parts by weight or less, preferably 10 parts by weight, based on 100 parts by weight of the solid content of the hydrolyzate of the silane compound.
It is 0 part by weight or less, more preferably 50 parts by weight or less. In this case, the compounding amount of vinyl resin containing silyl group is 3
If it exceeds 100 parts by weight, the weather resistance of the obtained coating film tends to be lowered.

Further, at least one kind of resin and / or rubber other than those mentioned above may be blended in the coating material within a range not impairing the weather resistance of the coating film obtained. Such resins and rubbers are not particularly limited, and examples thereof include vinyl resins, epoxy resins, urethane resins, amide resins, synthetic rubbers and natural rubbers. The coating material can be used as a clear coating material without blending a filler, and can be used as an enamel by blending a filler. In order to prevent deterioration of the total film thickness and / or deterioration of the flyer, it is preferable to use it as an enamel. Examples of the filler used for the enamel include those described in JP-A-5-345877. Further, as other additives, for example, a thickener, a wetting agent, an antifreezing agent, a leveling agent, a dye, a pigment, an antiseptic / antifungal agent, an antioxidant, an ultraviolet absorber and the like can be added.

In the present invention, a primer is applied in advance to the surface of the hard plastic gasket for the purpose of ensuring adhesion with the coating material. Such a primer is not particularly limited, and examples thereof include organopolysiloxane-based, vinyl resin-based, silyl group-containing vinyl resin-based, epoxy resin-based, urethane resin-based, rubber-based, and the like. However, an organopolysiloxane-based or silyl group-containing vinyl resin-based primer is particularly preferable. As the organopolysiloxane-based primer, for example, a varnish of a hydrolyzate of a silane compound represented by the chemical formula [Chemical Formula 1] can be used, and as the silyl group-containing vinyl resin-based primer, for example, The silyl group-containing vinyl resin varnish exemplified for the coating material in the present invention can be used. When the coating material is applied to the back surface of the coating portion of the coating member, a thickness of 0.1 to 50 μm can be obtained by a conventionally known method such as brush coating, spraying, a blade coater, or a roll coater. A coating film having a thickness of preferably 1 to 40 μm, more preferably 10 to 30 μm is formed, and dried at a temperature of room temperature to 150 ° C. for 10 minutes to 12 hours. The coating material is applied not only before fitting the member gap seal member according to claim 1 or 2 between members such as wall members but also after fitting between the members such as wall members. It is possible to

[0014]

FIG. 1 shows an embodiment of the present invention. The wall panel 1 shown in FIG. 1 (a) is a panel frame.
Four wall members 20,20,20,20 are attached to 10 and each wall member 2
Sealing members 30, 30, 30 according to an embodiment of the present invention are fitted in the spaces 0, 20, 20, 20 as shown in FIG. 1 (c). As shown in FIG. 1B, each seal member 30 includes a seal member main body 32, a covering member 31, and a coating film 33 applied to the back surface of the covering member 31 via a primer coating film 34. Become. The seal member main body 32 is made of a compounded rubber of ethylene-propylene rubber (elongation 190%) as a material and is formed in a longitudinal shape along the gap between the wall members 20,20. More specifically, the back surface of the seal member main body 32 is provided on the entire inner wall surface (bottom surface and inner side surfaces) of the gap when fitted so that it can be fitted over the entire inside of the gap. It is formed into a shape that substantially matches the above-mentioned gap and is slightly larger than the above-mentioned gap so that the entire surface (bottom surface and both outer side surfaces) other than the above can be brought into close contact with each other. A notch 32a is formed in the center of the back surface side of the seal member 32 along the longitudinal direction of the gap. This notch 32a
The depth of is approximately equal to the length of the leg 31b of the covering member 31 below,
The width is slightly narrower than the width of the leg portion 31b. Cover member 31
Is made of AES resin (elongation: 25%) as a material and formed in a longitudinal shape along the gap between the wall members 20, 20. The cross-sectional shape is substantially T-shaped. That is, the covering portion 31a for covering the back surface of the seal member main body 32, and the covering portion 31a
It has a long leg portion 31b standing upright from the center of the abdominal surface of a, and a locking folded portion (reverse portion) 31c provided at the tip of the leg portion 31b. The leg portion 31b of the covering member 31 is fitted into the notch portion 32a of the seal member body 32 and is sandwiched by the pressing force of the seal member body 32, and the folded portion 31c at the tip of the leg portion 31b is notched. The covering member 31 is integrated with the seal member main body 32 by being locked in the portion 32a. The abdominal surface of the covering portion 31a of the covering member 31 and / or
Alternatively, an adhesive may be applied to the back surface of the seam member main body 32 so that both are integrated. A primer coating 34 is formed by coating a primer on the back surface of the coating portion 31a of the coating member 31, and a glass coat is coated on the primer coating 34 to form a coating 33. . The primer coating film 34 is a silyl group-containing vinyl resin-based primer, Kaneka Zemlak (trade name, solid content 50%, manufactured by Kanebuchi Chemical Co., Ltd.), and has a dry thickness of about 10
It is formed by coating the back surface of the coating portion of the coating member 31 to have a thickness of μm and then heating at 80 ° C. for 30 minutes. The coating 33 is methyltrimethoxysilane 1
00 parts, dimethyldimethoxysilane 50 parts, Kaneka Zemlac (brand name, solid content 50%, Kanegafuchi Chemical Industry Co., Ltd.)
20 parts of acetylacetone was added to a hydrolyzate of a mixture of 50 parts of aluminum) and 20 parts of diisopropoxy ethyl acetoacetate aluminum to obtain a varnish having a solid content of 35%. A coating material obtained by adding 23 parts of titanium (white) and 0.5 part of a cellulosic thickening agent and kneading the mixture, and adding 2% of dibutyltin dilaurate as a curing accelerator thereto, has a dry weight of 40 g / m ² , dry thickness is about 30μ
After coating on the primer coating film 34 so that m,
It was formed by heating at 80 ° C. for 30 minutes. Regarding the specific dimensions of the seal member having the above structure, the width of the seal member main body 32 is 10 mm, the thickness is 20 mm, the depth of the cut portion 32a is 8 mm, and the length in the longitudinal direction is 1500 mm.
The width of the covering member 31 is 10 mm, the thickness of the covering portion 31a is 1 mm, the length of the leg portion 31b is 5.5 mm, the projection length of the folded portion is 2 mm, and the length in the longitudinal direction is 1500 mm.
The sealing member having such a structure was tested for weather resistance and stain resistance after being exposed to an environment corresponding to long-term use, and all were favorable. In addition, there was no light deterioration of the seal member body, and problems such as falling out were prevented.

As described above, according to the present invention, the watertightness and the airtightness are good, the step of providing the seal member in the gap between the wall members is simple and the working time is short, and the wall member is removed from the gap even after many years of use. It is possible to obtain a seal member that is difficult to be exposed, has good weather resistance, and does not easily get dirty.

[Brief description of drawings]

1A and 1B show a member gap seal member according to an embodiment, FIG. 1A is an explanatory view of a state of being assembled to an outer wall panel, and FIG.
Is a schematic sectional view showing a disassembled state of the seal member, and (c) is a schematic sectional view showing how the seal member is assembled to the outer wall panel.

2A and 2B show a conventional seal member for wall members, in which FIG. 2A is an explanatory view of a state of being assembled to an outer wall panel, FIG. 2B is a schematic sectional view showing a state of being assembled by filling, and FIG. FIG. 6 is a schematic cross-sectional view showing a state of being assembled by combining.

[Explanation of symbols]

 30 seal member 31 covering member 32 seal member main body 33 coating film 34 primer coating film

Claims (3)

[Claims] 1. A seal member main body formed of a material having elasticity so that it can be fitted into a gap between adjacent members, and a covering portion having a shape capable of covering the gap between the adjacent members,
A member gap seal member comprising: a cover member in which at least a back surface side portion of the cover portion is formed to be rigid, and an abdominal surface of the cover portion is brought into close contact with a back surface of the seal member main body. 2. A seal formed by using a material having elasticity so that it can be fitted into a gap between adjacent members, and a notch formed along the direction of the gap on the back face side. A member main body, a covering portion having a shape capable of covering a gap between adjacent members, and a leg portion provided upright from a ventral surface of the covering portion, and the leg portion and at least the rear surface side portion of the covering portion are made hard. A member gap seal member, which is formed and has the leg portion fitted in the cut portion of the seal member body, and the abdominal surface of the cover portion is brought into close contact with the back surface of the seal member body. 3. The method according to claim 1 or 2, wherein the rear surface of the coating portion of the coating member is represented by the following chemical formula (1) R ¹ _n Si (OR ² ) _4-n (1) A member gap seal member, which is formed by applying a coating material containing a hydrolyzate of a silane compound as a main component. However, R ¹ represents an organic group having 1 to 8 carbon atoms, R ² represents an alkyl group having 1 to 5 carbon atoms or an acyl group having 1 to 4 carbon atoms, and n is an integer of 0 to 2.